Photonic blood typing
US9599613B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 20, 2012 |
| Grant date | Mar 21, 2017 |
| Priority date | — |
| Expiry date | Jul 20, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/75
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Photonic devices, systems, and methods for detecting an analyte in a biological solution (e.g., whole blood) are provided. Representative photonic devices are optical ring resonators having nanoscale features and micron-sized diameters. Due to the compact size of these devices, many resonators can be disposed on a single substrate and tested simultaneously as a sample is passed over the devices. Typical analytes include blood cells, antibodies, and pathogens, as well as compounds indicative of the presence of blood cells or pathogens (e.g., serology). In certain embodiments, blood type can be determined through photonic sensing using a combination of direct detection of blood cells and serology. By combining the detection signals of multiple devices, the type of blood can be determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.